I have a chance to get this game for $17.99 bucks, is it worth it at this price?

Yeah, I think so. I got it on sale for about $20, and I'm happy with it. It's a pretty solid FPS with some character development in the form of a talent tree type of thing. The demon arms are a fun mechanic, and the light being a hazard adds another dimension to gameplay. I haven't finished yet, but it seems like the main campaign is a tad short. There is some added value in the Vendetta mode, which is basically a chance to use alternate characters in a less story-oriented mode with different "Darkness" abilities, and you can always replay the game to collect all the relics and so forth.

There's no PvP multiplayer, which is a little weird, but the Vendetta mode can be played co-op online. Haven't done that myself, so I don't know if it's any good. There's no DLC out yet, and I don't know if there's any coming down the pike despite there being a menu option for it.

Yeah, I think so. I got it on sale for about $20, and I'm happy with it. It's a pretty solid FPS with some character development in the form of a talent tree type of thing. The demon arms are a fun mechanic, and the light being a hazard adds another dimension to gameplay. I haven't finished yet, but it seems like the main campaign is a tad short. There is some added value in the Vendetta mode, which is basically a chance to use alternate characters in a less story-oriented mode with different "Darkness" abilities, and you can always replay the game to collect all the relics and so forth.

There's no PvP multiplayer, which is a little weird, but the Vendetta mode can be played co-op online. Haven't done that myself, so I don't know if it's any good. There's no DLC out yet, and I don't know if there's any coming down the pike despite there being a menu option for it.

Online coop is dead. You randomly have 2 or 3 hosted games with 1 or 2 players each, but that's about it. Wasn't much better shortly after release, but then again, this game wasn't made to be played for years, so it's no real surprise people moved on quite fast.

The main campaign is stellar and quite different from other FPS's out there. Art direction is off the walls.

Online is a special, co-op exclusive campaign that can also be soloed or played offline so you can get more out of the main storyline. I finished all missions yesterday and whilst it's true that there may only be 4-5 people playing, it's still quite enjoyable.